Co2meter RAD-0501 User manual

CO2 Controller Operating Instructions
Models: RAD-0501, RAD-0501A
© CO2Meter, Inc. Rev. 7/12/17 and S/N: E7044002386 or higher
1. Product Description
RAD-0501 Greenhouse Mode: Controls CO2 generator or regulator to
increase CO2 levels during daylight for plant growth.
RAD-0501A Ventilation Mode: Controls an exhaust fan when CO2 levels are
higher than recommended maximum for your application.
Main Features (Both Models):
1. Accurately measures CO2 concentrations up to 2,000ppm
2. Built-in temperature (°C or °F) measurement
3. Automatic altitude compensation via built-in barometric sensor
4. Relay-controlled outlet regulated by long-lasting CO2 sensor.
2. Contents & Description
1. CO2 Controller
2. Wall panel holder (1)
3. Screws (2)
4. Drywall anchors (2)
5. User Manual
A. LCD Display
B. Photo Sensor (monitors light or dark period)
C. Power - Red LED (power on indicator)
D. Active - Green LED (lights when relay is active)
E. CO2 High - Red LED (lights when CO2 concentration is above Target Hi)
F. Daylight - Yellow LED (verifies photo sensor is working properly)
G. DOWN Button (changes menu settings)
H. UP Button (changes menu settings)
I. SEL/ENT Button (selects menu settings)
J. Unit power and relay-controlled power “piggyback” plug
K. Case screw mounts
L. CO2 sensor
M. Tube fitting for bottled gas calibration
N. 4-20mA Linear Analog Output for CO2 level
3. Caring for the Product
To get the most out of this product, please observe the following
1. Repair - Do not attempt to repair the product or modify the circuitry by
yourself. Contact CO2Meter.com if the product needs servicing, including
the replacement or calibration of the sensor.
2. Cleaning - Disconnect the power before cleaning. Use a damp cloth. Do
not use liquid cleaning agents such as benzene, thinner or aerosols, as
these will damage the device.
4. Connection Diagram
Note: In Greenhouse Mode the piggyback plug controls CO2 regulator or generator. In
Ventilation Mode the piggyback plug controls an exhaust fan.
4.1. How it Works
1. The Power (Red LED) is on when the power is supplied.
2. Greenhouse Mode: The DayLight (yellow) LED will light when the photo
sensor is active. The photo sensor detects the presence or absence of light.
When light is present, and CO2 levels are between the Target Lo and
Target Hi CO2 levels, the Active (green) LED is on and power will be
supplied to the piggyback plug. When CO2 levels reach the Target Hi level,
the Active (green) LED will turn off, the CO2 High (red) LED will turn on,
and power will be cut to the piggyback plug. In darkness, the piggyback
plug is not powered regardless of the CO2 level.
3. Ventilation Mode: If CO2 levels are higher than the Target Hi level, the
Active (green) LED will turn on and power will be supplied to the piggyback
plug. When CO2 levels decrease below the Target Lo, the Active (green)
LED will go off and power will be cut to the piggyback plug. In ventilation
mode, the photo sensor is always disabled.

5. LCD Display Icons
Symbol Meaning Description
CO2 Level CO2 Concentration in ppm
(Parts Per Million)
Temperature Display the current temperature.
Switch °C / °F with UP key
Barometric
Pressure
Displays air pressure. Switch
inHg / hPa with DOWN key
Recover
Factory Setting
Restore factory default settings
and delete all custom settings
Calibration Fresh air or known CO2 level gas
calibration in process
Hi
Setting CO2
Target High
value
CO2 High level when relay is
turned
on or off depending on
mode
Lo
Setting CO2
Target Low
value
CO2 Low level when relay is
turned
on or off depending on
mode
HI High CO2 value
CO2 Levels have exceeded
10,000PPM
Relay is
Activated
When the relay is powered ON
will be shown on the LCD
Greenhouse
Mode (default)
Relay on below CO2 set-point,
photo sensor enabled
Ventilation
Mode
Relay on above CO2 set-point,
Relay on above CO2 set-point,
6. Safety Notes
Your safety is very important to us! To ensure correct and safe use of the product,
please read this entire User Manual before using the CO2 controller. Otherwise,
the protection provided by the equipment may be impaired. These warnings
provide important safety information and should be observed at all times:
1. Do not subject the unit to impact or shock. This may decrease the sensor’s
precision.
2. Do not place the unit or the power plug near a heat source. Heat can
cause distortion of the unit, which may result in fire.
3. Do not open the CO2 Controller or touch any exposed electronic circuitry
under any circumstances. This could result in electric shock.
4. Use the attached power adaptor and cord in a grounded plug only.
Ungrounded power sources can cause serious damage to the product, or
result in injury or death to the user.
5. Only connect devices to the controller that use grounded plugs.
7. Installation Instructions
1. Choose a suitable location at plant level to install the controller. Mount
the controller securely using the 2 included screws.
2. Plug the piggyback plug into a 110-220 VAC (US only) grounded wall
socket to power the controller.
3. Greenhouse Mode: Plug a CO2 generator or bottled CO2 control
regulator into the piggyback plug.
4. Ventilation Mode: Plug an exhaust fan into the piggyback plug.
Note: Electrical devices plugged into the piggyback plug must draw less than
5A at 110-250 VAC or less than 5A @ 30 VDC.
8. Changing Settings
The settings that can be changed are: Mode, Target, Calibration, Advanced
and Reset Factory Defaults. Each is described below.
9. Changing the Mode
When the leaficonis displayed, the controller is in Greenhouse Mode.
This mode maintains a pre-set CO2 level by powering the piggyback plug during
daylight only.
When the house icon is displayed, the controller is in Ventilation
Mode. This mode powers the piggyback plug when the CO2 level is above the
Target Hi and remains on until the CO2 level falls below the Target Lo level. In
Ventilation Mode, the photo sensor is ignored.
To change the Mode:
1. Press the SEL/ENT button 4 times The MODE icon will flash.
2. Press SEL/ENT button for 2-3 seconds to enter the MODE setting.
3. Press the UP or DOWN buttons to change from GROU to VENT.
4. Press the SEL/ENT button again to Save the MODE.

10. Changing the Target Lo CO2
The default Target Lo CO2 level is pre-set at 800 ppm.Depending on the types
of plants you are growing, you may wish to change the Target Lo level. To
change the Target Lo:
1. Press the SEL/ENT button once. The TARGET Lo icon flashes.
2. Press SEL/ENT button for 2-3 seconds to enter Target Lo mode.
3. Press the UP or DOWN buttons to adjust the Target CO2 level.
4. Press the SEL/ENT button again to Save the Target Lo value.
11. Changing the Target Hi CO2
The default Target Hi CO2 level is pre-set at 1,500 ppm. Depending on the
types of plants you are growing, you may wish to change the Target Hi level.
To change the Target Lo:
1. Press the SEL/ENT button twice. The TARGET Hi icon will flash.
2. Press the SEL/ENT button for 2-3 seconds to enter the Target Hi Mode.
3. Press the Up or Down buttons to select Target CO2 value.
4. Press SEL/ENT button again to Save the Target Hi Value.
12. Calibration
Between growing cycles or at least once a year, you should manually recalibrate
the unit. We recommend you use fresh air (~400ppm) for calibration by taking
the unit outdoors, plugging it in, and following the procedure below. Optionally,
you can calibrate using a cylinder of known CO2 gas (0~2000ppm) connected
to the “M” fitting. Wait at least 5 minutes for the CO2 level on the LCD to stabilize,
then follow this procedure.
1. Press the SEL/ENT button 3 times. The CAL icon will flash.
2. Press the SEL/ENT button for 2-3 seconds to enter the CAL mode.
The CO2 level on the LCD will flash.
3. Press the UP or DOWN buttons to select the CO2 calibration value.
Select 400ppm for outdoor/fresh air, or select the number that
matches the known CO2 gas cylinder rating.
4. Press the SEL/ENT button again to start calibration. Calibration will
take 3-5 minutes.
5. If the word PASS is displayed, calibration is complete.
6. If the word FAIL is displayed, retry the procedure.
7. If the word Er9 is displayed, refer to Error Codes below.
13. Advanced Menu
The advanced menu is for modifying the Daylight and Barometric Pressure
functions.
To access the Advanced Menu:
1. Press and Hold both the UP and DOWN buttons for 10 seconds.
2. The screen will show LED.
In Greenhouse mode, the Daylight Mode uses the Photo Sensor to detect light.
The Power LED (Red) shows power to the unit. The default mode is LED OFF
at night. If LED is ON, the Power LED (Red) will remain on at night.
Note: Some growers believe an active Power LED (Red) at night provides
enough light to continue the photosynthesis process.
To change the LED mode:
1. With LED showing, Press ENTER.
2. Press UP or DOWN to toggle between YES and NO.
3. Press SEL/ENT to Save.
The Barometric Pressure function compensates for altitude adjustment. The
default setting is BAR ON. If BAR is OFF, the unit will default to sea level
barometric pressure and not compensate the CO2 level for altitude.
Note: CO2 levels are effected by altitude and could show incorrect readings.
To change the BAR Mode:
1. With LED showing, press UP or Down to show BAR, Press ENTER.
2. Press the UP or DOWN button to toggle between YES and NO.
3. Press SEL/ENT to Save.
14. Reset Factory Defaults
RCFS fixes improperly set Target or manual calibration problems and returns the
meter to Greenhouse Mode by restoring the factory default settings:
Note: If you reset the Factory Defaults, the controller will revert to Greenhouse
Mode. If you are using a fan, you should immediately change to Ventilation
Mode for the device to work properly for your application (See step 10 -
Changing the Mode).
1. Press the SEL/ENT button 5 times. The RCFS icon will flash.
2. Press the SEL/ENT button for 2-3 seconds to enter the RCFS mode.
3. Press the UP or DOWN button to select “Yes”.
4. Press the SEL/ENT button to Save and reset factory defaults.

15. Specifications
CO2 Specifications:
Measurement Range 0 - 2,000ppm for rated specifications
0 - 10,000ppm output for 4-20mA output
Display Resolution 1ppm at 0~1,000ppm; 10ppm above 1000ppm
Accuracy 0 - 2,000ppm: ±70ppm or ±5% of reading,
whichever is greater. >2,000ppm: ±7% of reading
Repeatability ±20ppm @400ppm
Pressure Dependence 0.13% of reading per mm Hg
Response Time < 2 minutes for 63% response to step change
Target Lo 800 ppm for both RAD-0501 Greenhouse Mode
and RAD-0501A Ventilation Mode
Target Hi 1500 ppm for both RAD-0501 Greenhouse Mode
and RAD-0501A Ventilation Mode
Warm-Up Time < 60 seconds at 72°F (22°C)
Splash Proof Grade IP54 non-sealed enclosure
Operating Conditions:
Operating Temperature 32°F to 122°F (0°C to 50°C)
Humidity Range 0 ~ 95% RH non-condensing
Storage Conditions:
Storage Temperature -4°F to 140°F (-20°C to 60 °C)
Power Supply & Relay Output:
Power Supply AC adapter 110/220 VAC (U.S. Only)
AC
Input
Voltage 100 ~ 240 VAC
Frequency 50 / 60 Hz
Power
Requirement 3 W maximum
Relay Socket Peak Current < 5A@ 250 VAC, SPST.
Normally Open.
Analog Output Linear current 4-20mA = 0-10,000ppm.
RL < 150Ω. Red (+) signal, White ground.
16. Dimensions
17. Fault Codes & Troubleshooting Guide
No. LCD Fault
Icon Fault Description Suggested Actions
1 Er3
The ambient temperature
has exceeded the
temperature range 0°C
to 50°C (32°F to 122°F)
This error will disappear when
the temperature returns to the
range between 0°C and 50°C
(32°F to 122°F).
2 Er4
Inaccurate measurement
or the sensor has
exceeded its expected
life
Unplug the AC adapter and
reconnect it. If the “Er4” always
appears, please contact place
of purchase.
3 Er5
Er6
EEPROM System
Problem
Unplug the AC adapter and
reconnect it. If the “Er5, Er6”
still appears, please contact
place of purchase.
4 Er8
The accuracy of CO2
sensor may deviate from
the actual concentration.
①Unplug the AC adapter and
reconnect. If the “Er8” still
appears, please contact place
of purchase.
②Calibrate the unit. After
calibration if the “Er8” still
appears, please contact place
of purchase.
5 Er9
Calibration failure caused
by too large a difference
between the calibration
value selected and the
CO2 level read during
calibration.
① Select the correct calibration
value before calibrating.
② If Er9 still appears, please
contact place of purchase.

18. Support & Warranty
Support
The quickest way to obtain technical support is via email. Please send all support
enquires to [e-mail]. In your email, please include a clear,
concise definition of the problem and any relevant troubleshooting information or
steps taken so far, so we can duplicate the problem and quickly respond to your
inquiry.
Warranty
This unit comes with a 1 YEAR (warranty period) limited manufacturer’s warranty,
starting from the date the unit was shipped to the buyer. During this period of time,
CO2Meter, Inc. warrants our products to be free from defects in materials and
workmanship when used for their intended purpose and agrees to fix or replace
(at our discretion) any part or product that fails under normal use. To take
advantage of this warranty, the product must be returned to CO2Meter, Inc. at
your expense. If, after examination, we determine the product is defective, we will
repair or replace it at no additional cost to you. This warranty does not cover any
products that have been subjected to misuse, neglect, accident, modifications or
repairs by you or by a third party. No employee or reseller of CO2Meter, Inc.
products may alter this warranty verbally or in writing.
Returns
If the product fails under normal use during the warranty period, an RMA (Return
Material Authorization) number must be obtained from CO2Meter, Inc. After the item
is received, CO2Meter, Inc. will repair or replace the item at our discretion. To obtain
an RMA number, please call [phone]. When requesting an RMA number,
please provide the reason for return and original order number. If we determine that
the product failed due to improper use (water damage, dropping, tampering, electrical
damage etc.) or abuse, or if it is beyond the warranty period, we will inform you of the
cost to fix or replace your device.
Return Instructions
If you are returning your device due to a warranty claim (with an RMA number)
and you still have the unit original package, please use it to ship your unit to us.
Please make sure to include the provided RMA number on the outside of the box,
preferably on the shipping label. Make sure you secure the unit inside the
package properly to prevent any damage during transit that could void your
device’s warranty. Finally, please ship your device to the address shown under
the “Contact Us” section below. CO2Meter, Inc. will not, under any circumstances,
be responsible for your shipment expenses and no refund will be issued for
shipping charges necessary for you to ship the unit to us.
Liability
All liabilities under this agreement shall be limited to the actual cost of the product paid
to CO2Meter, Inc. In no event, shall CO2Meter, Inc. be liable for any incidental or
consequential damages, lost profits, loss of time, lost sales or loss or damage to data,
injury to person or personal property or any other indirect damages as the result of
use of our products.
Contact us: We’re here to help!
If the troubleshooting guide above doesn’t help you solving your problem or for more
information, please contact us using the information below.
[e-mail]
[phone] (M-F 9:00am–5:00pm EST)
www.CO2Meter.com
CO2Meter, Inc.
131 Business Center Drive, Ormond Beach, FL 32174
Phone: [phone] | Fax: [phone]
Email: [e-mail]